The interaction of 4-hydroxymethyl isoindolines with dehydrobenzene. Synthesis of 3-phenylaminomethyldihydrobenzo[c]furanes
摘要:
2-Alkyl or 2-aryl-substituted 4-hydroxymethylisoindolines smoothly undergo intramolecular recyclization through reaction with arynes to give isobenzofurans with good yields. (C) 2015 Elsevier Ltd. All rights reserved.
Retracted: Synthesis of 2‐Arylisoindoline Derivatives Catalyzed by Reusable 1,2,4‐Triazole Iridium on Mesoporous Silica through a Cascade Borrowing Hydrogen Strategy
作者:Wei Yao、Chenyang Ge、Yilin Zhang、Xiao‐Feng Xia、Long Wang、Dawei Wang
DOI:10.1002/chem.201904095
日期:2019.12.13
2,4-triazole iridium complex to mesoporous MCM-41 generated a heterogeneous catalyst that was found to be effective in the synthesis of 2-aryl isoindolines, quinolines, cyclic amines, and symmetrical secondaryamines through a cascade borrowing hydrogen strategy. Interestingly, the supported heterogeneous iridium catalyst prepared from the 1,2,4-triazole iridium complex and mesoporous MCM-41 exhibited
Iron‐Catalysed Switchable Synthesis of Pyrrolidines
<i>vs</i>
Pyrrolidinones by Reductive Amination of Levulinic Acid Derivatives
<i>via</i>
Hydrosilylation
作者:Duo Wei、Chakkrit Netkaew、Christophe Darcel
DOI:10.1002/adsc.201801656
日期:2019.4.16
A selective production of pyrrolidines vs pyrrolidinones via hydrosilylation of levulinic acid and levulinates by switching of the iron complex catalyst is presented herein. The reactions proceeded efficiently with various anilines and alkylamines under both visible light irradiation and thermal conditions with 43 examples in isolated yields up to 93%. Noticeably, under similar conditions, cyclic amines
Synthesis of N-aryl substituted, five- and six-membered azacycles using aluminum-amide complexes
作者:Balaji L. Korbad、Sang-Hyeup Lee
DOI:10.1039/c4cc04111a
日期:——
Synthesis of N-arylsubstituted, five- and six-membered azacycloalkanes, isoindolines and tetrahydroisoquinolines, has been described. In this synthesis, cyclic ethers (n = 1, 2) were treated with dimethylaluminum-amide reagents, derived from a range of aryl amines and trimethylaluminum, to afford the corresponding azacycles in good yields.
Visible-light promoted photocatalyst-free aerobic α-oxidation of tertiary amines to amides
作者:Xinpeng Xie、Xuan Guo、Kaikai Qiao、Lei Shi
DOI:10.1039/d2ob01565j
日期:——
strategy for the α-oxygenation of tertiaryamines by molecular oxygen (1 atm), enabled by electron–donor–acceptor (EDA) complexes, has been developed. This EDA-complex mediated process provides a facile access to amides and esters from readily accessible corresponding amines and ethers without the need for an external photoredox catalyst, and also features mild reaction conditions, broad substrate scope